CVE-2021-4002

Estado: ModificadaMedia (4.4)—

A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Puntuación base: 4.4

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.52%
Percentil entre todas las CVEs puntuadas: 42
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (6)

Debian — Debian Linux Fedoraproject — Fedora Linux — Linux Kernel Oracle — Communications Cloud Native Core Binding Support Function Oracle — Communications Cloud Native Core Network Exposure Function Oracle — Communications Cloud Native Core Policy

CWE

CWE-459
CWE-401

Referencias

JSON original (NVD)

Mostrar

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